KR101755827B1 - Cylinder - Google Patents

Cylinder Download PDF

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Publication number
KR101755827B1
KR101755827B1 KR1020150116106A KR20150116106A KR101755827B1 KR 101755827 B1 KR101755827 B1 KR 101755827B1 KR 1020150116106 A KR1020150116106 A KR 1020150116106A KR 20150116106 A KR20150116106 A KR 20150116106A KR 101755827 B1 KR101755827 B1 KR 101755827B1
Authority
KR
South Korea
Prior art keywords
main body
supply port
cylinder
hole
fluid
Prior art date
Application number
KR1020150116106A
Other languages
Korean (ko)
Other versions
KR20170021953A (en
Inventor
위경찬
최병호
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020150116106A priority Critical patent/KR101755827B1/en
Priority to US14/929,597 priority patent/US9739293B2/en
Publication of KR20170021953A publication Critical patent/KR20170021953A/en
Application granted granted Critical
Publication of KR101755827B1 publication Critical patent/KR101755827B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices

Abstract

Disclosed is a cylinder capable of shortening the length of a fluid supply pipe for driving a cylinder and enabling the cylinder to be fixedly installed, thereby preventing cylinder fluctuation and further improving durability. The cylinder includes a main body having an inner space and an upper supply port and a lower supply port for supplying and discharging the fluid from the outside to the inner space; A piston arranged to move up and down between the upper supply port and the lower supply port along the side wall of the inner space; A rod having one end connected to the piston and having a region exposed to an upper portion of the main body to transmit the power generated by the upward and downward movement of the piston to the outside; And a pipe having one end connected to the upper supply port and extending to a lower portion of the main body, and the piston moves up and down by fluid supplied / discharged through the other end of the pipe and the lower supply port.

Description

Cylinder {CYLINDER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder, and more particularly, to a cylinder capable of shortening a length of a fluid pipe for supplying a fluid for driving a cylinder and fixing the cylinder so as to prevent cylinder oscillation and further improve durability.

Generally, a cylinder used in a vehicle body factory facility or the like has a structure in which the rod is simply hinged to a clamp or the like for providing power, and the cylinder body is also fixed to the external structure by a fixed hinge.

In such a conventional cylinder mounting structure, when the rod is moved forward and backward and the clamp is operated, the coupling hinge between the clamp and the rod causes oscillation to be transmitted to the cylinder, and is rocked to the cylinder main body to deteriorate the coupling state of the fluid pipe connected to the cylinder main body There arises a problem of durability.

Further, due to such a fluctuation, it is impossible to install a cover for preventing foreign matter, and thus the problem of reduction in durability becomes more serious, and a serious problem that the operating rate is deteriorated and the integrity is poor may occur.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a cylinder capable of shortening the length of a fluid supply pipe for cylinder drive and fixing and installing the cylinder, thereby preventing cylinder oscillation and further improving durability.

According to an aspect of the present invention,

A main body having an inner space and an upper supply port and a lower supply port for supplying and discharging fluid from the outside to the inner space;

A piston arranged so as to be movable up and down between the upper supply port and the lower supply port along a side wall of the inner space;

A rod having one end connected to the piston and having a region exposed to an upper portion of the main body to transmit the power generated by the upward and downward movement of the piston to the outside; And

A pipe connected at one end to the upper supply port and extending to a lower portion of the main body;

And a cylinder.

In the cylinder according to the embodiment of the present invention, the piston can move up and down by the fluid supplied / discharged through the other end of the pipe and the lower supply port.

In one embodiment of the present invention, the lower supply port may include a first lower supply port formed to penetrate the bottom portion of the main body, and a second lower supply port formed to penetrate the side surface of the main body.

In one embodiment of the present invention, the main body has a first through hole penetrating the bottom of the main body so as not to penetrate the inner space, one end of the first through hole being connected to the other end of the pipe, And the fluid can be supplied / discharged to the other end of the through hole.

In one embodiment of the present invention, one end of the first through-hole may be formed in a side portion of the main body, and the other end of the first through-hole may be formed in a bottom portion of the main body.

In one embodiment of the present invention, the main body has at least one second through-hole penetrating between the outside and the first through-hole at a region below the inner space at the lower portion thereof, And the fluid can be supplied / discharged at one end on the outer side.

In one embodiment of the present invention, the other end of the first through hole is formed in a bottom portion of the main body, and the outer end of the second through hole is formed in a side portion of the main body.

One embodiment of the present invention may further include a floating link portion having one end hinged to the other end of the rod so as to be rotatable in one direction.

In one embodiment of the present invention, the other end of the floating link portion may be formed with a hinge connection portion rotatable in the same direction as the one end of the floating link portion.

One embodiment of the present invention may further include a cylinder fixing portion for fixing the main body to another structure.

In one embodiment of the present invention, the cylinder fixing portion may be formed extending from the main body in the rotating direction of one end of the floating link portion.

According to another aspect of the present invention,

A main body having an upper supply port and a lower supply port for supplying a fluid from the outside to upper and lower portions of the piston moving region so as to move the piston arranged in the inner space up and down; And

And a pipe extending from the upper supply port to a lower portion of the main body,

And the piston can be moved up and down by supplying and discharging the fluid from the lower portion of the main body to the inner space through the pipe and the lower supply port.

One embodiment of the present invention includes: a rod having one end connected to the piston and the other end exposed to the outside of the main body; And a floating link unit having one end hinged to the other end of the rod so as to be rotatable in one direction.

One embodiment of the present invention may further include a cylinder fixing portion for fixing the main body to another structure.

According to the cylinder having the above-mentioned means for solving the problems, the fluid piping for receiving the fluid above and below the cylinder interior space and discharging the fluid can be installed adjacent to the lower portion of the cylinder, thereby shortening the length of the fluid piping, It is possible to securely maintain the connection state of the connector.

In addition, according to the present invention, since a large number of fluid passages can be provided and discharged, a large amount of fluid can be supplied or discharged, thereby improving the operation speed of the cylinder.

In addition, according to the present invention, the cylinder can be fixedly installed by applying the floating link to the end of the rod, thereby preventing the occurrence of rocking during cylinder operation. Therefore, it is possible to solve various problems caused by the occurrence of the rocking motion, to provide a cover for the cylinder, to ensure the durability of the cylinder, and to facilitate maintenance of the cylinder.

1 is a perspective view of a cylinder according to an embodiment of the present invention.
2 is an enlarged bottom view of a cylinder according to an embodiment of the present invention.
3 is a schematic cross-sectional view of a cylinder according to an embodiment of the present invention.
4 to 6 are diagrams showing the operation of the cylinder application example according to the embodiment of the present invention.

Hereinafter, a cylinder according to various embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a cylinder according to an embodiment of the present invention, FIG. 2 is an enlarged bottom view of a cylinder according to an embodiment of the present invention, and FIG. 3 is a schematic sectional view of a cylinder according to an embodiment of the present invention to be.

1 to 3, a cylinder 10 according to an embodiment of the present invention includes upper and lower portions 111a and 111b of a moving region of a piston 13 so as to move a piston 13 disposed in an inner space 111 up and down, A main body 11 having an upper supply port 113 and a lower supply port 115 for supplying fluids from the outside to the main body 11b and pipes 111b extending from the upper supply port 113 to the lower portion of the main body 11 17).

The cylinder 10 according to the embodiment of the present invention configured as described above is configured such that the fluid is supplied to and discharged from the lower space of the main body through the pipe 17 and the lower supply port 115 into the inner space 111, Can be moved up and down.

The cylinder 10 according to the embodiment of the present invention includes an inner space 111 and an upper supply port 113 and a lower supply port 115 for supplying and discharging fluid from the outside to the inner space 111, A piston 13 disposed so as to be movable up and down between the upper supply port 113 and the lower supply port 115 along the side wall of the inner space 11; One end is connected to the rod 15 and the upper supply port 113 having an area exposed to the upper portion of the main body 11 so as to transmit the power generated by the upward and downward movement of the piston 13, And a pipe 17 extending to a lower portion of the pipe.

The cylinder 10 according to the embodiment of the present invention configured as described above is connected to the piston 17 by the fluid supplied / discharged through the other end of the pipe 17 located at the lower portion of the main body 11 and the lower feed port 115 13) can be moved up and down. Through such a structure, it is possible to form a fluid pipe (not shown) connected to the cylinder 10 at a lower portion of the cylinder to supply or discharge the fluid to the upper internal space 111a and the lower internal space 111b, respectively So that the path of the fluid piping can be minimized compared with the conventional method of directly connecting the fluid piping to the upper portion of the cylinder for supplying or recovering fluid to the upper internal space 111a of the cylinder, The connection state of the piping can be more firmly maintained.

In order to simplify the path of the fluid piping, the main body 11 may include a first through hole 211 connected to the fluid piping and the pipe 17. Is formed at a lower portion of the main body 11 of the first through hole 211 in an area not invading the inner space 111 of the main body and has one end connected to the lower side end of the pipe 17, And may include the other end for receiving or discharging. One end of the first through hole 211 connected to the pipe 17 may be formed on the side surface of the main body 11 and the other end of the first through hole 211 may be formed on the bottom surface of the main body 11 117).

When the lower supply port 115 is formed in such a manner as to penetrate from the bottom portion 117 of the main body 11 of the cylinder 10 to the inner space 111, the upper inner space 111a and the lower inner space 111b may be connected to the bottom portion 117 of the main body 11 of the cylinder 10, respectively. That is, when the fluid is supplied to the upper internal space 111a of the cylinder 10, the fluid introduced from the fluid pipe flows from one end of the first through hole 211 formed in the bottom portion 117 of the main body 11 Through the first through hole 211 and the pipe 17, and is supplied to the upper supply port 113. When the fluid is supplied to the lower internal space 111b of the cylinder 10, the fluid pipe is connected to the lower supply port 115 penetrating from the bottom portion 117 of the main body 11 to the lower internal space 111b So that the fluid can be introduced. That is, since two fluid pipes can be coupled to the bottom portion 117 of the main body 11, the piping route can be simplified and the joint state of the pipeline can be maintained well.

The main body 11 of the cylinder 10 according to the embodiment of the present invention is provided with at least one second through hole (not shown) penetrating between the outside and the first through hole 211 213). A fluid pipe may be connected to one end of the outer side of the second through hole 213 to supply / discharge the fluid. One end of the outer side of the second through hole 213 may be formed in the side portion of the main body 11 when the fluid pipe connection side end of the first through hole 211 is formed in the bottom portion 117 of the main body 11. [ have.

Similarly, the lower supply ports 115 and 116 are also connected to the first lower supply port 115 formed in the bottom portion 117 of the main body 11 and the second lower supply port 115 formed in the side portion 119 of the main body 11, (Not shown). The first lower supply port 115 and the second lower supply port 116 may be formed so as to pass between the outside of the main body 11 and the lower internal space 111b.

As described above, one embodiment of the present invention can be selectively used according to the amount of fluid supplied by providing a plurality of passages for connecting fluid piping for supplying / discharging fluid. In particular, by using all of the supply passages for supplying the fluid, it is possible to increase the amount of the fluid to be supplied / discharged, so that the speed of the piston 13 and the rod 15 can be increased.

Meanwhile, the cylinder 10 according to the embodiment of the present invention may further include a floating link portion 23 having one end hinged to the other end of the rod 15 so as to be rotatable in one direction. The other end of the floating link portion 23 may be formed with a hinge connection portion that is rotatable in the same direction as the one end of the floating link portion 23 connected to the rod 15.

The floating link portion 23 is configured to be rotatable through hinge engagement in a state where both ends are not fixed, so that the power can be transmitted to other structures through the up and down movement of the rod 15 even when the cylinder 11 is fixed.

The cylinder 10 according to the embodiment of the present invention can be fixed so that its position is unchanged without using the hinge due to the floating link portion 23. [ Accordingly, the cylinder 11 according to the embodiment of the present invention may further include a cylinder fixing portion 25 for fixing the cylinder to the other structure. The cylinder fixing portion 25 may include a structure extending in the direction of the side surface of the cylinder 10 and fixing through-holes formed in the structure. The cylinder fixing portion 25 may be disposed at various positions of the cylinder 10 but the cylinder fixing portion 25 may be disposed at various positions of the cylinder 10 in the direction in which the floating link portion 23 rotates, As shown in FIG.

4 to 6 are diagrams showing the operation of the cylinder application example according to the embodiment of the present invention.

4, a cylinder 10 according to an embodiment of the present invention may be in a forward state in which a piston is upwardly moved by supplying a fluid to a lower supply port 115 to raise the rod 15 . The cylinder fixing portion 25 of the cylinder 10 can be fixed to a specific structure externally so that the main body 11 is not moved at all. When the rod 15 rises to the maximum, the floating link portion 23 can be arranged in the axial direction of the rod 15, and the other end of the floating link portion 23 can be fixed by the fixed hinge 311 And can be hinged to one end of the rotating circular hinge clamp 31. [

5, when fluid is supplied to the first through hole 211 and / or the second through hole 213 to raise the other end of the circular hinge clamp 31 upward, The fluid in the lower internal space 11b is discharged through the lower supply port 115 and the piston 13 is moved downward. As a result, the rod 15 also moves downward, and both ends of the floating link portion 23 are appropriately rotated at both ends thereof in a floating state by the non-fixed hinge coupling. Thus, one end of the circular hinge clamp 31 fixed by the fixed hinge 311 is lowered, and the other end is raised. The operation of the floating link portion 23 enables the main body 11 of the cylinder 10 to operate in a completely fixed state.

6, the piston 13 and the rod 15 of the cylinder 10 are completely moved to the lower position to complete the backward movement, and one end of the circular hinge clamp 31 is completely lowered The other end is in a fully raised state. At this time, the floating link portion 23 can be placed again in the axial direction of the rod 15.

As described above, the cylinder 10 according to the various embodiments of the present invention allows the fluid piping, which receives the fluid to be vertically fed into the cylinder interior space or discharges the fluid, to be installed adjacent to the lower portion of the cylinder, And the connection state of the fluid piping can be firmly maintained.

In addition, since the cylinder 10 according to various embodiments of the present invention is provided with a plurality of connection passages of the fluid piping to supply and discharge a large amount of fluid, the cylinder operation speed can be improved.

In addition, the cylinder 10 according to various embodiments of the present invention can fix the cylinder 10 by applying the floating link portion 23 to the end of the rod 15, thereby preventing the occurrence of rocking during cylinder operation have. Therefore, it is possible to solve various problems due to the occurrence of the shaking motion, to provide a cover for the cylinder, to ensure the durability of the cylinder, and to facilitate maintenance of the cylinder.

Although the present invention has been shown and described with respect to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as hereinafter claimed It will be apparent to those of ordinary skill in the art.

10: cylinder 11: main body
111: inner space 111a: upper inner space
111b: lower inner space 113: upper supply port
115, 116: Lower feed port 117: Body bottom
119: main body side portion 13: piston
15: load 17: pipe
211: first through hole 213: second through hole
23: floating link portion 25: cylinder fixing portion

Claims (14)

A main body having an inner space and an upper supply port and a lower supply port for supplying and discharging fluid from the outside to the inner space;
A piston arranged to move up and down between the upper supply port and the lower supply port along the side wall of the inner space;
A rod having one end connected to the piston and having a region exposed to an upper portion of the main body to transmit the power generated by the upward and downward movement of the piston to the outside; And
And a pipe, one end of which is connected to the upper supply port and extends to a lower portion of the main body,
Wherein the main body has a first through hole penetrating a lower portion of the main body so as not to penetrate the inner space, one end of the first through hole being connected to the other end of the pipe and the fluid passing through the other end of the first through hole Supplied / discharged,
Wherein one end of the first through hole is formed in a side surface portion of the main body and the other end of the first through hole is formed in a bottom portion of the main body. The method according to claim 1,
And the piston moves up and down by the fluid supplied / discharged through the other end of the pipe and the lower supply port. The method according to claim 1,
Wherein the lower supply port includes a first lower supply port formed to penetrate the bottom of the main body and a second lower supply port formed to penetrate the side surface of the main body. delete delete The method according to claim 1,
Wherein the main body has at least one second through hole penetrating between the outside and the first through hole at a region below the first through hole in a region not penetrating the inner space, / Discharged. The method of claim 6,
Wherein the other end of the first through hole is formed in a bottom portion of the main body and the one end of the outer side of the second through hole is formed in a side portion of the main body. The method according to claim 1,
Further comprising a floating link portion having one end hinged to the other end of the rod so as to be rotatable in one direction. The method of claim 8,
And a hinge connection portion capable of rotating in the same direction as one end of the floating link portion is formed at the other end of the floating link portion. The method of claim 8,
And a cylinder fixing portion for fixing the main body to the other structure. The method of claim 10,
And the cylinder fixing portion is formed to extend from the main body in a rotating direction of one end of the floating link portion. A main body having an upper supply port and a lower supply port for supplying a fluid from the outside to upper and lower portions of the piston moving region so as to move the piston arranged in the inner space up and down; And
And a pipe extending from the upper supply port to a lower portion of the main body, outside the main body,
Wherein a fluid is supplied to and discharged from the lower space of the main body through the pipe and the lower supply port to move the piston up and down,
Wherein the main body has a first through hole penetrating a lower portion of the main body so as not to penetrate the inner space, one end of the first through hole being connected to the other end of the pipe and the fluid passing through the other end of the first through hole Supplied / discharged,
Wherein one end of the first through hole is formed in a side surface portion of the main body and the other end of the first through hole is formed in a bottom portion of the main body. The method of claim 12,
A rod having one end connected to the piston and the other end exposed to the outside of the main body; And a floating link portion having one end hinged to one end so as to be rotatable in one direction at the other end of the rod. The method of claim 12,
And a cylinder fixing portion for fixing the main body to the other structure.
KR1020150116106A 2015-08-18 2015-08-18 Cylinder KR101755827B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150116106A KR101755827B1 (en) 2015-08-18 2015-08-18 Cylinder
US14/929,597 US9739293B2 (en) 2015-08-18 2015-11-02 Cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150116106A KR101755827B1 (en) 2015-08-18 2015-08-18 Cylinder

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Publication Number Publication Date
KR20170021953A KR20170021953A (en) 2017-03-02
KR101755827B1 true KR101755827B1 (en) 2017-07-10

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US (1) US9739293B2 (en)
KR (1) KR101755827B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001182714A (en) * 1999-10-14 2001-07-06 Howa Mach Ltd Clamp cylinder and rod cover thereof
JP2003329010A (en) * 2002-05-16 2003-11-19 Koganei Corp Clamping unit
JP5035533B2 (en) * 2007-09-24 2012-09-26 豊和工業株式会社 Clamping device

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Publication number Priority date Publication date Assignee Title
GB626229A (en) * 1945-02-08 1949-07-12 Jonkopings Motorfabrik Ab Improvements in or relating to reciprocating hydraulic servo-motors for actuating the blades of a propeller
US2803223A (en) * 1955-08-03 1957-08-20 Vickers Inc Power transmission
ATE230824T1 (en) * 1994-07-15 2003-01-15 Tyco Flow Control Pacific Pty ACTUATOR
JP2000074005A (en) 1998-08-27 2000-03-07 Kubota Corp Variable stroke cylinder device
JP3364215B1 (en) 2002-03-12 2003-01-08 有限会社本田製作所 Double-acting booster cylinder and method of boosting pressure in cylinder
KR100504251B1 (en) 2003-03-29 2005-08-04 이근종 Oil hydraulic cylinder
JP2008025764A (en) 2006-07-24 2008-02-07 Nitta Ind Corp Thermal expansion polymer wax actuator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001182714A (en) * 1999-10-14 2001-07-06 Howa Mach Ltd Clamp cylinder and rod cover thereof
JP2003329010A (en) * 2002-05-16 2003-11-19 Koganei Corp Clamping unit
JP5035533B2 (en) * 2007-09-24 2012-09-26 豊和工業株式会社 Clamping device

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Publication number Publication date
US9739293B2 (en) 2017-08-22
US20170051766A1 (en) 2017-02-23
KR20170021953A (en) 2017-03-02

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